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PROCESS FOR INCREASING THE SCUFFRESISTANCE OF PAPERBOARD
US 3,457,100 A
Filed
: 08/16/1965
Issued
: 07/22/1969
Est. Priority Date
: 08/16/1965
Status: Expired due to Term
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Current Assignee
Leon Levene
Original Assignee
Leon Levene
Inventors
Levene, Leon
Application Number
US04/480,196
Time in Patent Office
1,436 Days
Field of Search
US Class Current
427/391
CPC Class Codes
D21H 17/66
Salts, e.g. alums
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